EP3713377A4 - Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant - Google Patents

Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant Download PDF

Info

Publication number
EP3713377A4
EP3713377A4 EP18879988.6A EP18879988A EP3713377A4 EP 3713377 A4 EP3713377 A4 EP 3713377A4 EP 18879988 A EP18879988 A EP 18879988A EP 3713377 A4 EP3713377 A4 EP 3713377A4
Authority
EP
European Patent Office
Prior art keywords
lamp
circuit
current attack
lighting circuit
vehicle lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18879988.6A
Other languages
German (de)
English (en)
Other versions
EP3713377A1 (fr
EP3713377B1 (fr
Inventor
Tomoyuki Ichikawa
Ryosuke Matsuhana
Satoshi Kikuchi
Naoki KAWABATA
Norito Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Priority to EP22172368.7A priority Critical patent/EP4064793B1/fr
Priority to EP21186111.7A priority patent/EP3934385B1/fr
Publication of EP3713377A1 publication Critical patent/EP3713377A1/fr
Publication of EP3713377A4 publication Critical patent/EP3713377A4/fr
Application granted granted Critical
Publication of EP3713377B1 publication Critical patent/EP3713377B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/347—Dynamic headroom control [DHC]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP18879988.6A 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant Active EP3713377B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22172368.7A EP4064793B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP21186111.7A EP3934385B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2017219171 2017-11-14
JP2017219172 2017-11-14
JP2018100800 2018-05-25
JP2018100801 2018-05-25
PCT/JP2018/041696 WO2019098138A1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant

Related Child Applications (4)

Application Number Title Priority Date Filing Date
EP22172368.7A Division EP4064793B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP22172368.7A Division-Into EP4064793B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP21186111.7A Division EP3934385B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP21186111.7A Division-Into EP3934385B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant

Publications (3)

Publication Number Publication Date
EP3713377A1 EP3713377A1 (fr) 2020-09-23
EP3713377A4 true EP3713377A4 (fr) 2021-10-13
EP3713377B1 EP3713377B1 (fr) 2025-07-09

Family

ID=66496382

Family Applications (3)

Application Number Title Priority Date Filing Date
EP21186111.7A Active EP3934385B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP22172368.7A Active EP4064793B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP18879988.6A Active EP3713377B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP21186111.7A Active EP3934385B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant
EP22172368.7A Active EP4064793B1 (fr) 2017-11-14 2018-11-09 Lampe de véhicule, circuit d'éclairage destiné à ladite lampe, circuit d'attaque de courant

Country Status (5)

Country Link
US (3) US11477871B2 (fr)
EP (3) EP3934385B1 (fr)
JP (1) JP7544481B2 (fr)
CN (2) CN111586935B (fr)
WO (1) WO2019098138A1 (fr)

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JP7544481B2 (ja) 2017-11-14 2024-09-03 株式会社小糸製作所 車両用灯具およびその点灯回路
EP3926807A4 (fr) 2019-02-13 2022-03-30 Koito Manufacturing Co., Ltd. Appareil d'éclairage de véhicule, circuit d'éclairage pour celui-ci, et circuit de commande de convertisseur cc/cc
WO2021251375A1 (fr) * 2020-06-09 2021-12-16 株式会社小糸製作所 Système de lampe de véhicule, circuit d'alimentation électrique
CN119967682A (zh) * 2020-06-09 2025-05-09 株式会社小糸制作所 车辆用灯具系统、配光控制器
CN113727496B (zh) * 2020-10-22 2023-06-23 杰华特微电子股份有限公司 多路led驱动方法及驱动电路
CN116568557A (zh) * 2020-12-18 2023-08-08 株式会社小糸制作所 车辆用灯具及照明方法
EP4021149A1 (fr) * 2020-12-22 2022-06-29 Textron Systems Corporation Appareil d'éclairage comprenant des del montées en parallèle et des pilotes de del
FR3122308B1 (fr) * 2021-04-27 2023-04-21 Speedinnov Dispositif de contrôle d’un dispositif d’éclairage, système d’éclairage et procédé de contrôle associés
CN113141691A (zh) * 2021-04-30 2021-07-20 上汽大众汽车有限公司 一种流水式位置灯的驱动控制装置
FR3130352A1 (fr) * 2021-12-10 2023-06-16 Valeo Vision Pilotage de groupes de pixels d’une source lumineuse pour réaliser une transition lumineuse
US12301116B2 (en) * 2022-01-17 2025-05-13 Mediatek Singapore Pte. Ltd. Voltage regulator with dynamic voltage and frequency tracking
CN116449900A (zh) * 2022-01-17 2023-07-18 联发科技（新加坡）私人有限公司 电压调节器
CN114572104B (zh) * 2022-03-08 2024-12-31 芜湖奇瑞科技有限公司 汽车尾灯的控制系统及方法
CN115226262B (zh) * 2022-05-16 2025-04-25 厦门普为光电科技有限公司 多功能智能照明装置控制系统及其控制方法
EP4637271A4 (fr) 2022-12-14 2026-03-25 Koito Mfg Co Ltd Dispositif de commande de lampe de véhicule
CN116887479B (zh) * 2023-08-01 2023-12-26 广州威博智能科技股份有限公司 一种三路无极整流的汽车双灯驱动电路
CN121671519A (zh) * 2026-02-09 2026-03-17 上海均诺电子有限公司 一种汽车座椅触感反馈与氛围灯联动系统及控制方法

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US20090009088A1 (en) * 2007-07-06 2009-01-08 Koito Manufacturing Co., Ltd. Lighting control device of lighting device for vehicle
US20090187925A1 (en) * 2008-01-17 2009-07-23 Delta Electronic Inc. Driver that efficiently regulates current in a plurality of LED strings
US20100327835A1 (en) * 2009-06-26 2010-12-30 Intersil Americas Inc. Integrator for providing overshoot protection and light switching mode during non-zero load condition for an led driver circuitry

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JP4398411B2 (ja) * 2005-07-12 2010-01-13 株式会社小糸製作所 車両用灯具の点灯制御装置
WO2008144961A1 (fr) * 2007-05-31 2008-12-04 Texas Instruments Incorporated Régulation de chaînes de led
JP2008304694A (ja) * 2007-06-07 2008-12-18 Rohm Co Ltd 内照式看板
US7999487B2 (en) 2008-06-10 2011-08-16 Allegro Microsystems, Inc. Electronic circuit for driving a diode load with a predetermined average current
US8421364B2 (en) * 2008-07-15 2013-04-16 Intersil Americas Inc. Transient suppression for boost regulator
JP4918929B2 (ja) 2009-01-30 2012-04-18 日本テキサス・インスツルメンツ株式会社 発光ダイオード制御装置
CN101990337B (zh) * 2009-08-03 2014-03-26 联咏科技股份有限公司 可动态维持定电流驱动的光源驱动装置及其相关方法
WO2011105086A1 (fr) * 2010-02-26 2011-09-01 ローム株式会社 Circuit d'excitation pour élément électroluminescent, dispositif électroluminescent l'utilisant et appareil d'affichage
JP5595126B2 (ja) 2010-06-03 2014-09-24 ローム株式会社 Ｌｅｄ駆動装置およびこれを備えた電子機器
TWI463911B (zh) * 2010-09-09 2014-12-01 Richtek Technology Corp 發光元件陣列驅動電路與用於其中之電流分配電路以及發光元件陣列電流分配方法
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JP2012160287A (ja) * 2011-01-31 2012-08-23 Sharp Corp 発光ダイオード点灯回路
KR101712676B1 (ko) * 2011-02-18 2017-03-07 매그나칩 반도체 유한회사 Ｐｗｍ 제어 회로 및 이를 이용한 ｌｅｄ 구동회로
JP5698580B2 (ja) 2011-03-24 2015-04-08 ローム株式会社 発光素子駆動用のスイッチング電源の制御回路、発光素子の駆動回路、およびそれらを用いた発光装置および電子機器
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JP6635689B2 (ja) * 2015-06-23 2020-01-29 ローム株式会社 照明装置、そのコントロール回路、制御方法、ならびにそれを用いたディスプレイ装置
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US10263515B2 (en) * 2016-04-14 2019-04-16 Licon Technology Corporation Quasi-analog digital pulse-width modulation control
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Publication number Priority date Publication date Assignee Title
US20090009088A1 (en) * 2007-07-06 2009-01-08 Koito Manufacturing Co., Ltd. Lighting control device of lighting device for vehicle
US20090187925A1 (en) * 2008-01-17 2009-07-23 Delta Electronic Inc. Driver that efficiently regulates current in a plurality of LED strings
US20100327835A1 (en) * 2009-06-26 2010-12-30 Intersil Americas Inc. Integrator for providing overshoot protection and light switching mode during non-zero load condition for an led driver circuitry

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BRIGGS DAVID ET AL: "Designing Fast Response Synchronous Buck Regulators Using the TPS5210 Mixed-Signal Products", 1 March 1999 (1999-03-01), pages 1 - 50, XP055804944, Retrieved from the Internet <URL:https://www.ti.com/lit/an/slva044/slva044.pdf> [retrieved on 20210517] *
See also references of WO2019098138A1 *

Also Published As

Publication number Publication date
JP7544481B2 (ja) 2024-09-03
EP3934385B1 (fr) 2024-02-14
EP4064793A1 (fr) 2022-09-28
US11477871B2 (en) 2022-10-18
CN111586935A (zh) 2020-08-25
US20220022299A1 (en) 2022-01-20
US20200275542A1 (en) 2020-08-27
EP4064793B1 (fr) 2025-03-05
US20220022300A1 (en) 2022-01-20
EP3934385A1 (fr) 2022-01-05
EP3713377A1 (fr) 2020-09-23
US11653434B2 (en) 2023-05-16
WO2019098138A1 (fr) 2019-05-23
EP3713377B1 (fr) 2025-07-09
CN111586935B (zh) 2023-01-31
CN109788614A (zh) 2019-05-21
CN109788614B (zh) 2022-01-04
JPWO2019098138A1 (ja) 2020-11-19
US11558943B2 (en) 2023-01-17

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